Science director of the Tyndall Centre at the University of East Anglia in Norwich, U.K.AAAS awards and honors:
- AAAS Award for Science and Diplomacy, 2007.
For his outstanding contributions to promoting international scientific cooperation in scientific research communication, and training, and his work on environmental and sustainable development.
- AAAS Scientific Freedom and Responsibility Award, 1993.
For leadership in developing the foundation for international protocols for control of ozone-destroying chemicals and for protection of the Earth's vital ozone shield.